| #include "runtime.h" |
| #include "defs.h" |
| #include "os.h" |
| #include "malloc.h" |
| |
| enum { |
| NaclPage = 0x10000 |
| }; |
| |
| void* |
| SysAlloc(uintptr n) |
| { |
| mstats.sys += n; |
| return runtime_mmap(nil, n, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_ANON|MAP_PRIVATE, -1, 0); |
| } |
| |
| void |
| SysUnused(void *v, uintptr n) |
| { |
| USED(v); |
| USED(n); |
| // TODO(rsc): call madvise MADV_DONTNEED |
| } |
| |
| void |
| SysFree(void *v, uintptr n) |
| { |
| // round to page size or else nacl prints annoying log messages |
| mstats.sys -= n; |
| n = (n+NaclPage-1) & ~(NaclPage-1); |
| runtime_munmap(v, n); |
| } |
| |
| void |
| SysMemInit(void) |
| { |
| } |
